Tanisha Love

Island

What is an island and the features of an island

An island is a piece of sub-continental land that is surrounded by water. Hawaii is formed by volcanoes and the ancient lavas flows so near the equator provide rich nutrients to support tropical jungles. An island can be a river or a lake.

How are islands formed?

Islands can be formed in several ways including rising water level, growth o coral, and volcanism. Most islands are formed volcano eruptions. When a volcano erupts, lave released and when it reaches the ground it cools and forms from a hotspot.

Where can islands be found on earth?

Islands can be found on oceans and lakes.

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Summary

A grouping of geographically or geologically related islands is called an archipelago. Two types of islands are continental and oceanic islands. These islands are also artificial islands. Continental island are bodies of land that lie on the continental shelf of a continent. A special type of island is the mircocontinetal island, which results when a continent is rifted. Oceanic islands are ones that do not sit on continental shelves. The vast majority are volcanic in origin. The few oceanic islands that are not volcanic are tectonic in origin and arise where plate movements have lifted up the deep ocean floor to above the surface.